For the following questions refer to the temperature and dew point data in the following cities:
-Suppose it is snowing outside and the air is saturated. The air temperature and dew point are both -9ºC, and the actual vapour pressure is 3 hPa. If this air is brought indoors and warmed to 24ºC, what would be the relative humidity of this air, assuming that its moisture content does not change? (The saturation vapour pressure at 24ºC is 30 hPa.)
A)50%
B)5%
C)10%
D)30%

Question

For the following questions refer to the temperature and dew point data in the following cities: 
-Suppose it is snowing outside and the air is saturated. The air temperature and dew point are both -9ºC, and the actual vapour pressure is 3 hPa. If this air is brought indoors and warmed to 24ºC, what would be the relative humidity of this air, assuming that its moisture content does not change? (The saturation vapour pressure at 24ºC is 30 hPa.)
A)50% 
B)5% 
C)10% 
D)30%

Quizplus · Accepted Answer

The relative humidity (RH) can be calculated using the formula RH = (actual vapour pressure / saturation vapour pressure) * 100. Given that the actual vapour pressure is 3 hPa and the saturation vapour pressure at 24ºC is 30 hPa, the relative humidity when the air is warmed to 24ºC without changing its moisture content would be (3 hPa / 30 hPa) * 100 = 10%.

For the Following Questions Refer to the Temperature and Dew